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Diffstat (limited to 'PxShared/src/foundation/include/windows/PsWindowsIntrinsics.h')
| -rw-r--r-- | PxShared/src/foundation/include/windows/PsWindowsIntrinsics.h | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/PxShared/src/foundation/include/windows/PsWindowsIntrinsics.h b/PxShared/src/foundation/include/windows/PsWindowsIntrinsics.h deleted file mode 100644 index ca1e9c5..0000000 --- a/PxShared/src/foundation/include/windows/PsWindowsIntrinsics.h +++ /dev/null @@ -1,190 +0,0 @@ -// This code contains NVIDIA Confidential Information and is disclosed to you -// under a form of NVIDIA software license agreement provided separately to you. -// -// Notice -// NVIDIA Corporation and its licensors retain all intellectual property and -// proprietary rights in and to this software and related documentation and -// any modifications thereto. Any use, reproduction, disclosure, or -// distribution of this software and related documentation without an express -// license agreement from NVIDIA Corporation is strictly prohibited. -// -// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES -// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO -// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, -// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. -// -// Information and code furnished is believed to be accurate and reliable. -// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such -// information or for any infringement of patents or other rights of third parties that may -// result from its use. No license is granted by implication or otherwise under any patent -// or patent rights of NVIDIA Corporation. Details are subject to change without notice. -// This code supersedes and replaces all information previously supplied. -// NVIDIA Corporation products are not authorized for use as critical -// components in life support devices or systems without express written approval of -// NVIDIA Corporation. -// -// Copyright (c) 2008-2017 NVIDIA Corporation. All rights reserved. -// Copyright (c) 2004-2008 AGEIA Technologies, Inc. All rights reserved. -// Copyright (c) 2001-2004 NovodeX AG. All rights reserved. - -#ifndef PSFOUNDATION_PSWINDOWSINTRINSICS_H -#define PSFOUNDATION_PSWINDOWSINTRINSICS_H - -#include "Ps.h" -#include "foundation/PxAssert.h" - -// this file is for internal intrinsics - that is, intrinsics that are used in -// cross platform code but do not appear in the API - -#if !PX_WINDOWS_FAMILY -#error "This file should only be included by Windows builds!!" -#endif - -#pragma warning(push) -//'symbol' is not defined as a preprocessor macro, replacing with '0' for 'directives' -#pragma warning(disable : 4668) -#if PX_VC == 10 -#pragma warning(disable : 4987) // nonstandard extension used: 'throw (...)' -#endif -#include <intrin.h> -#pragma warning(pop) - -#pragma warning(push) -#pragma warning(disable : 4985) // 'symbol name': attributes not present on previous declaration -#include <math.h> -#pragma warning(pop) - -#include <float.h> -#include <mmintrin.h> - -#pragma intrinsic(_BitScanForward) -#pragma intrinsic(_BitScanReverse) - -namespace physx -{ -namespace shdfnd -{ - -/* -* Implements a memory barrier -*/ -PX_FORCE_INLINE void memoryBarrier() -{ - _ReadWriteBarrier(); - /* long Barrier; - __asm { - xchg Barrier, eax - }*/ -} - -/*! -Returns the index of the highest set bit. Not valid for zero arg. -*/ -PX_FORCE_INLINE uint32_t highestSetBitUnsafe(uint32_t v) -{ - unsigned long retval; - _BitScanReverse(&retval, v); - return retval; -} - -/*! -Returns the index of the highest set bit. Undefined for zero arg. -*/ -PX_FORCE_INLINE uint32_t lowestSetBitUnsafe(uint32_t v) -{ - unsigned long retval; - _BitScanForward(&retval, v); - return retval; -} - -/*! -Returns the number of leading zeros in v. Returns 32 for v=0. -*/ -PX_FORCE_INLINE uint32_t countLeadingZeros(uint32_t v) -{ - if(v) - { - unsigned long bsr = (unsigned long)-1; - _BitScanReverse(&bsr, v); - return 31 - bsr; - } - else - return 32; -} - -/*! -Prefetch aligned cache size around \c ptr+offset. -*/ -#if !PX_ARM -PX_FORCE_INLINE void prefetchLine(const void* ptr, uint32_t offset = 0) -{ - // cache line on X86/X64 is 64-bytes so a 128-byte prefetch would require 2 prefetches. - // However, we can only dispatch a limited number of prefetch instructions so we opt to prefetch just 1 cache line - /*_mm_prefetch(((const char*)ptr + offset), _MM_HINT_T0);*/ - // We get slightly better performance prefetching to non-temporal addresses instead of all cache levels - _mm_prefetch(((const char*)ptr + offset), _MM_HINT_NTA); -} -#else -PX_FORCE_INLINE void prefetchLine(const void* ptr, uint32_t offset = 0) -{ - // arm does have 32b cache line size - __prefetch(((const char*)ptr + offset)); -} -#endif - -/*! -Prefetch \c count bytes starting at \c ptr. -*/ -#if !PX_ARM -PX_FORCE_INLINE void prefetch(const void* ptr, uint32_t count = 1) -{ - const char* cp = (char*)ptr; - uint64_t p = size_t(ptr); - uint64_t startLine = p >> 6, endLine = (p + count - 1) >> 6; - uint64_t lines = endLine - startLine + 1; - do - { - prefetchLine(cp); - cp += 64; - } while(--lines); -} -#else -PX_FORCE_INLINE void prefetch(const void* ptr, uint32_t count = 1) -{ - const char* cp = (char*)ptr; - uint32_t p = size_t(ptr); - uint32_t startLine = p >> 5, endLine = (p + count - 1) >> 5; - uint32_t lines = endLine - startLine + 1; - do - { - prefetchLine(cp); - cp += 32; - } while(--lines); -} -#endif - -//! \brief platform-specific reciprocal -PX_CUDA_CALLABLE PX_FORCE_INLINE float recipFast(float a) -{ - return 1.0f / a; -} - -//! \brief platform-specific fast reciprocal square root -PX_CUDA_CALLABLE PX_FORCE_INLINE float recipSqrtFast(float a) -{ - return 1.0f / ::sqrtf(a); -} - -//! \brief platform-specific floor -PX_CUDA_CALLABLE PX_FORCE_INLINE float floatFloor(float x) -{ - return ::floorf(x); -} - -#define NS_EXPECT_TRUE(x) x -#define NS_EXPECT_FALSE(x) x - -} // namespace shdfnd -} // namespace physx - -#endif // #ifndef PSFOUNDATION_PSWINDOWSINTRINSICS_H |